"Bank reconciliation" sounds like something only accountants do. It isn't. It's a simple check that keeps your business numbers honest — and if you do your own books, it's the single most important habit you can build. Here's what it is and how to do it yourself.
What bank reconciliation actually is
Reconciliation is comparing two records of the same thing: what you think happened (your accounting records) and what actually happened (your bank statement). When the two agree for a period, you're reconciled — which means your income, expenses and closing balance are correct. When they don't, something's been missed, entered twice, or recorded with the wrong amount.
That's the whole concept. Everything else is process. For a deeper primer, see what is bank reconciliation.
Why it matters when you run your own business
Skipping reconciliation is how small businesses end up with a BAS that's wrong and a tax return they can't defend. Reconciling regularly means you:
- Catch income you forgot to record (and would otherwise under-report)
- Spot expenses you can legitimately claim (and would otherwise miss)
- Notice bank fees, duplicate charges, and unauthorised transactions early
- Always know your real cash position, not a guess
How to reconcile, step by step
- Pick the period — usually a month or a quarter
- Get every transaction in — import your statement (CSV, Excel or PDF) rather than typing it
- Categorise each transaction — assign income and expense accounts; set rules for recurring vendors so you only do each one once
- Match to the bank — confirm each record matches a real bank line
- Check the closing balance — your records' closing balance must equal the bank statement's closing balance
- Investigate any difference — it's always a real, findable transaction
How often should you reconcile?
| Business type | Suggested frequency |
|---|---|
| Cash-heavy or high-volume (café, retail) | Weekly |
| Has employees / regular payments | Fortnightly to monthly |
| Service business, steady volume | Monthly |
| Very low volume sole trader | Monthly to quarterly |
Monthly is the sensible default for most small businesses. Leaving it to BAS time means reconstructing memories of transactions from months ago.
Why your balance won't match (the usual suspects)
- A transaction recorded in your books but not yet cleared by the bank (timing)
- Bank fees or interest the bank charged but you didn't record
- A transaction entered twice, or with a transposed amount
- A payment recorded against the wrong account
Tip: when there's a difference, search for the exact difference amount first — it usually lands straight on the offending transaction.
Doing it without a bookkeeper
Reconciliation is repetitive, which makes it perfect to automate. ReconLink imports your statements, recognises common Australian vendors out of the box (a 139-vendor coding pack is built in), and lets you set rules so recurring transactions categorise themselves. You review the exceptions and confirm the balance — minutes, not hours. The Solo plan is designed for one owner doing their own books, with a free 30-day trial; see pricing.
Frequently asked questions
Do I need to reconcile if I'm not registered for GST?
Yes. Reconciliation keeps your income and expense records accurate for your income tax return and for understanding your cash position — it's not only about GST or BAS.
Can I reconcile in a spreadsheet?
You can, and many sole traders start there. It works at low volume but gets slow and error-prone as transactions grow, because there's no automatic matching or vendor coding. Dedicated software pays off quickly once you're past a handful of transactions a week.
What's the difference between bank reconciliation and just checking my balance?
Checking your balance tells you how much is in the account today. Reconciliation confirms that every transaction is recorded and categorised correctly — which is what makes your reports and BAS trustworthy.
This article is general information for Australian small business owners, not tax advice. Confirm your specific record-keeping and reporting obligations with the ATO or a registered tax or BAS agent.